The behavior of erbium doped fiber amplifiers (EDFA) in a master oscillator power amplifier configuration was characterized, for the first time, in-situ using a Co60 γ-ray source. The results indicate that power degradation and photo-anneal recovery processes simultaneously exist. A fiber optimized for efficiency also provides a radiation harder EDFA with reduced power degradation after a 10 kRad (100 Gy) exposure.

中文翻译：

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富辐射环境中掺铒光纤的原位研究

首次使用 Co60 γ 射线源对主振荡器功率放大器配置中的掺铒光纤放大器 (EDFA) 的行为进行了现场表征。结果表明功率衰减和光退火恢复过程同时存在。针对效率进行优化的光纤还可提供抗辐射 EDFA，在 10 kRad (100 Gy) 暴露后可减少功率衰减。